1. New canon nb-5l battery comes in a discharged condition and must be fully charged before use. It is recommended that you fully charge and discharge the new battery two to four times to allow it to reach its maximum rated capacity, failure to do so can significantly shorten the battery's life.
2. Keep the canon battery nb-5l healthy by fully charging and then fully discharging it periodically. Exceptions to the rule are Li-Ion batteries, which do not suffer from the memory effect.
3. If you don't plan on using the battery canon nb-5l for a month or more, we recommend storing it in a clean, dry, cool place away from heat and metal objects. NiCad, NiMH and Li-Ion batteries will self-discharge during storage; remember to break them in before use.
4. Overcharge will cause some quality defect risen such as internal pressure rising, battery distortion, leakage and so on. Meanwhile its performance will decline.
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